PERFORATED GRILLES

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Most Popular PERFORATED GRILLES

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PERFORATED GRILLES

Perforated grilles, also referred to as perforated screens or perforated sheets are our most modern style of grille, made by the most modern methods. Most of the standard perforated grilles are made by cnc punching. Die and punch sets are used for thicker materials. The metal is sheared by pressing (either by machine or hand tool) the punch through the workpiece and into the die. Sometimes where more random or creative patterns are required laser or waterjet cutting are deemed more appropriate.

Whilst our focus is centred on the decorative patterns that you will find here we can also supply more plain looking industrial patterns, which can be specially perforated with specific patterns for unique decorative or practical applications. Our perforated grilles in a wide variety of materials and finishes are ultimately versatile. From lightweight decorative elements to load-bearing structural components, we offer perforated grilles that provide unique opportunities to combine beauty and strength with functionality.

Most of the patterns we keep in stock end up as radiator grilles, air conditioning grilles, decorative screens and dividing panels, larder screens, vent covers, ventilation panels, decorative panels and grilles in new and restored antique furniture and a wide variety of other interior design, heating, ventilation and air conditioning (HVAC) applications. Larger panels of perforated grilles are also used externally to provide shade and a noise dampening effect with a decorative cladding that does not entirely obscure the view or the light from inside the building whilst providing significant low maintenance energy savings.

The most popular metal for the perforated decorative grille is brass. Often our perforated brass grilles are used as the base material for a variety of other finishes. First the brass grilles can come in two varieties; satin brass grilles and mirror brass grilles. Beyond that, if an older, darker, aged or antique look is required we can apply chemical processes to speed up the ageing process and achieve in a matter of minutes a look that would otherwise take decades to achieve naturally. Antiquing and bronzing are the two most popular aged brass finishes. The antique brass grilles can be darkened only slightly to look like brass that has just been left uncoated for a year or so or it can be taken to an almost steel like black and then linished back to the desired colour to achieve a different type of finishing that leaves darker areas whilst polishing lighter the raised areas. Bronzing is a similar process but tends towards a browner finish closer to the appearance or antique bronze grilles. In the same way that the antique brass grilles can be treated in such a professional manner that an exact age or shade of patina can be achieved, the same can be done with our bronzed grilles. We can bronze the grilles just enough to take the shine off or leave them in until they turn towards dark hues of purple and blue. But bronze grilles and antique brass grilles are far from the only aged finishes we can provide. If the new coppery look of real raw bronze is required, which is not something that can be achieved with a brass grille then we will perforate, laser cut or water-jet cut your pattern from real bronze. This bronze grille could then be polished, satin finished or again antiqued to look as if it was made hundreds of years ago. To maintain the finish of you bronze grilles or antique brass grilles they can be waxed and then re-waxed or lacquered the result is a beautiful piece of metalwork that continues to improve with age, whether it is a floor grille, wall grille, radiator grille, a grille in an antique piece of furniture or any other type of grille. As mentioned before our grilles can be cut in any pattern but if a bespoke pattern is not required and a simple stock design will do then you can either choose from the designs you see displayed or consider some of the finer details such as margins of un-perforated metal that occur around the sides of the whole perforated sheet, the orientation of the holes in relation to each other. Sometimes they are in regular lines, other times they are staggered like a brick pattern. The size of the hole is quite an important consideration as it may depend how important it is to obscure the background of what is behind the grille. Two tips that can be helpful when choosing a larger hole but still wanting to obscure the background behind the grille are to either spray or paint the object eg. The Inside of a cupboard or a radiator Ė black. Or to fit a fine backing mesh which can be treated to be the same colour as the front grille. Obviously doing both by fitting a matching backing mesh to the front grille and spraying the radiator black will achieve the maximum obscuring effect which providing the perfect contrasting back ground to show off your exquisite decorative grille.

The naturally light weight and transparent nature of perforated metal grilles makes them ideal materials to work with and once they are installed no maintenance is required. They can provide over 28% energy saving in one year. So it is easy to see why perforated metal panels are so often the first choice for architects and interior designers looking for a low cost solution with high performance and strong aesthetic appeal.

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Londonís Decorative Metalwork and Metal Grille Specialist

James Gilbert & Son specialises in high quality decorative metalwork. We are the world's oldest manufacturer of decorative metal grilles. Over the last 135 years we've produced architectural quality metal works for some of the biggest brands on the planet, yet we don't forget our roots nor our smaller customers.

We use manufacturing, polishing and patinating techniques that we have honed to perfection for over a century, alongside contemporary engineering technologies.

At the centre of our business are decorative grilles including hand woven-wire and regency grilles, decorative screens and panels with associated frames and decorative metalwork. These grace some of the finest hospitality and entertainment venues, public buildings and private residences the length and breadth of the U.K. and beyond.

We are always using our knowledge and experience to bring innovative products and metal processing techniques to the market and our 2016 range includes a whole portfolio of new materials designed to contrast and compliment our metalwork. The location of our central London works makes us ideally located for supplying high quality decorative metalwork at short notice to satisfy the fast paced requirements of London’s design and construction industries.

We provide a fully comprehensive decorative metalwork manufacturing service. Our brass, bronze and steel products including radiator and floor grilles, furniture, fixtures and fittings are dispatched all over the world. We work with architects, interior designers, construction contractors and fit out companies, product designers and private clients on contemporary and historic projects where a high standard and attention to detail are required. We are more than happy to instruct and advise your on site contractors to ensure fitted products are applied correctly. With our extensive experience of processing and chemically treating metals, all our decorative metal grilles and associated decorative metal products can be treated to make the finish match the style and era of the project. We also colour match existing finishes if samples of original pieces are supplied. We have fully equipped metal working facilities with both historic and state-of-the-art machinery, which means our skilled craftsmen can truly fulfil your decorative interior and architectural metalwork requirements.

Whether your project involves the restoration of a single item – such as the supply of a single radiator grille - or the complete refurbishment of a modern department store or chain of historic hotels, please send us details of the project now including measurements, photographs, architectural drawings, CAD files, pdf’s, sketches on envelopes, pipe cleaner models, vague notions and loose concepts are all accepted as starting points. The best results are achieved when we are included in the early stages of a project from where we are happy to advise and be on hand to help all the way through to completion. Let us initiate the discussion as to how we can help you now, and we look forward to working with you!